epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
Herb Derby | 73fe7b0 | 2017-02-08 15:12:19 -0500 | [diff] [blame] | 7 | #include "SkArenaAlloc.h" |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 8 | #include "SkBlurDrawLooper.h" |
Mike Reed | 18e7556 | 2018-03-12 14:03:47 -0400 | [diff] [blame] | 9 | #include "SkMaskFilter.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 10 | #include "SkCanvas.h" |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 11 | #include "SkColorSpaceXformer.h" |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 12 | #include "SkColor.h" |
Mike Reed | 80747ef | 2018-01-23 15:29:32 -0500 | [diff] [blame] | 13 | #include "SkMaskFilterBase.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 14 | #include "SkReadBuffer.h" |
| 15 | #include "SkWriteBuffer.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 16 | #include "SkLayerDrawLooper.h" |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 17 | #include "SkString.h" |
| 18 | #include "SkStringUtils.h" |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 19 | #include "SkUnPreMultiply.h" |
Mike Reed | 8d3f443 | 2017-06-10 11:08:53 -0400 | [diff] [blame] | 20 | #include "SkXfermodePriv.h" |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 21 | |
| 22 | SkLayerDrawLooper::LayerInfo::LayerInfo() { |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 23 | fPaintBits = 0; // ignore our paint fields |
Mike Reed | faba371 | 2016-11-03 14:45:31 -0400 | [diff] [blame] | 24 | fColorMode = SkBlendMode::kDst; // ignore our color |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 25 | fOffset.set(0, 0); |
| 26 | fPostTranslate = false; |
| 27 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 28 | |
vandebo@chromium.org | 3c89818 | 2011-06-22 05:01:28 +0000 | [diff] [blame] | 29 | SkLayerDrawLooper::SkLayerDrawLooper() |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 30 | : fRecs(nullptr), |
commit-bot@chromium.org | 79fbb40 | 2014-03-12 09:42:01 +0000 | [diff] [blame] | 31 | fCount(0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 32 | } |
| 33 | |
| 34 | SkLayerDrawLooper::~SkLayerDrawLooper() { |
| 35 | Rec* rec = fRecs; |
| 36 | while (rec) { |
| 37 | Rec* next = rec->fNext; |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 38 | delete rec; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 39 | rec = next; |
| 40 | } |
| 41 | } |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 42 | |
Herb Derby | 73fe7b0 | 2017-02-08 15:12:19 -0500 | [diff] [blame] | 43 | SkLayerDrawLooper::Context* |
| 44 | SkLayerDrawLooper::makeContext(SkCanvas* canvas, SkArenaAlloc* alloc) const { |
commit-bot@chromium.org | 091a594 | 2014-04-18 14:19:31 +0000 | [diff] [blame] | 45 | canvas->save(); |
Herb Derby | 73fe7b0 | 2017-02-08 15:12:19 -0500 | [diff] [blame] | 46 | return alloc->make<LayerDrawLooperContext>(this); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 47 | } |
| 48 | |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 49 | static SkColor xferColor(SkColor src, SkColor dst, SkBlendMode mode) { |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 50 | switch (mode) { |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 51 | case SkBlendMode::kSrc: |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 52 | return src; |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 53 | case SkBlendMode::kDst: |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 54 | return dst; |
| 55 | default: { |
| 56 | SkPMColor pmS = SkPreMultiplyColor(src); |
| 57 | SkPMColor pmD = SkPreMultiplyColor(dst); |
Mike Reed | f90aa01 | 2017-06-14 01:27:02 +0000 | [diff] [blame] | 58 | SkXfermode::Peek(mode)->xfer32(&pmD, &pmS, 1, nullptr); |
| 59 | return SkUnPreMultiply::PMColorToColor(pmD); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 60 | } |
| 61 | } |
| 62 | } |
| 63 | |
reed@google.com | 8426058 | 2011-11-21 16:42:10 +0000 | [diff] [blame] | 64 | // Even with kEntirePaint_Bits, we always ensure that the master paint's |
| 65 | // text-encoding is respected, since that controls how we interpret the |
| 66 | // text/length parameters of a draw[Pos]Text call. |
commit-bot@chromium.org | 79fbb40 | 2014-03-12 09:42:01 +0000 | [diff] [blame] | 67 | void SkLayerDrawLooper::LayerDrawLooperContext::ApplyInfo( |
| 68 | SkPaint* dst, const SkPaint& src, const LayerInfo& info) { |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 69 | SkColor srcColor = src.getColor(); |
| 70 | #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK |
| 71 | // The framework may respect the alpha value on the original paint. |
| 72 | // Match this legacy behavior. |
| 73 | if (SkColorGetA(srcColor) == 255) { |
| 74 | srcColor = SkColorSetA(srcColor, dst->getAlpha()); |
| 75 | } |
| 76 | #endif |
| 77 | dst->setColor(xferColor(srcColor, dst->getColor(), (SkBlendMode)info.fColorMode)); |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 78 | |
| 79 | BitFlags bits = info.fPaintBits; |
reed@google.com | 8426058 | 2011-11-21 16:42:10 +0000 | [diff] [blame] | 80 | SkPaint::TextEncoding encoding = dst->getTextEncoding(); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 81 | |
mike@reedtribe.org | 3c1225b | 2011-04-09 18:54:08 +0000 | [diff] [blame] | 82 | if (0 == bits) { |
| 83 | return; |
| 84 | } |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 85 | if (kEntirePaint_Bits == bits) { |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 86 | // we've already computed these, so save it from the assignment |
| 87 | uint32_t f = dst->getFlags(); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 88 | SkColor c = dst->getColor(); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 89 | *dst = src; |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 90 | dst->setFlags(f); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 91 | dst->setColor(c); |
reed@google.com | 8426058 | 2011-11-21 16:42:10 +0000 | [diff] [blame] | 92 | dst->setTextEncoding(encoding); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 93 | return; |
| 94 | } |
| 95 | |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 96 | if (bits & kStyle_Bit) { |
| 97 | dst->setStyle(src.getStyle()); |
| 98 | dst->setStrokeWidth(src.getStrokeWidth()); |
| 99 | dst->setStrokeMiter(src.getStrokeMiter()); |
| 100 | dst->setStrokeCap(src.getStrokeCap()); |
| 101 | dst->setStrokeJoin(src.getStrokeJoin()); |
| 102 | } |
| 103 | |
| 104 | if (bits & kTextSkewX_Bit) { |
| 105 | dst->setTextSkewX(src.getTextSkewX()); |
| 106 | } |
| 107 | |
| 108 | if (bits & kPathEffect_Bit) { |
Mike Reed | 693fdbd | 2017-01-12 10:13:40 -0500 | [diff] [blame] | 109 | dst->setPathEffect(src.refPathEffect()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 110 | } |
| 111 | if (bits & kMaskFilter_Bit) { |
Mike Reed | 693fdbd | 2017-01-12 10:13:40 -0500 | [diff] [blame] | 112 | dst->setMaskFilter(src.refMaskFilter()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 113 | } |
| 114 | if (bits & kShader_Bit) { |
Mike Reed | 693fdbd | 2017-01-12 10:13:40 -0500 | [diff] [blame] | 115 | dst->setShader(src.refShader()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 116 | } |
| 117 | if (bits & kColorFilter_Bit) { |
Mike Reed | 693fdbd | 2017-01-12 10:13:40 -0500 | [diff] [blame] | 118 | dst->setColorFilter(src.refColorFilter()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 119 | } |
| 120 | if (bits & kXfermode_Bit) { |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 121 | dst->setBlendMode(src.getBlendMode()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 122 | } |
| 123 | |
reed@google.com | 8426058 | 2011-11-21 16:42:10 +0000 | [diff] [blame] | 124 | // we don't override these |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 125 | #if 0 |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 126 | dst->setTypeface(src.getTypeface()); |
| 127 | dst->setTextSize(src.getTextSize()); |
| 128 | dst->setTextScaleX(src.getTextScaleX()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 129 | dst->setRasterizer(src.getRasterizer()); |
| 130 | dst->setLooper(src.getLooper()); |
| 131 | dst->setTextEncoding(src.getTextEncoding()); |
| 132 | dst->setHinting(src.getHinting()); |
| 133 | #endif |
| 134 | } |
| 135 | |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 136 | // Should we add this to canvas? |
| 137 | static void postTranslate(SkCanvas* canvas, SkScalar dx, SkScalar dy) { |
| 138 | SkMatrix m = canvas->getTotalMatrix(); |
| 139 | m.postTranslate(dx, dy); |
| 140 | canvas->setMatrix(m); |
| 141 | } |
| 142 | |
commit-bot@chromium.org | 79fbb40 | 2014-03-12 09:42:01 +0000 | [diff] [blame] | 143 | SkLayerDrawLooper::LayerDrawLooperContext::LayerDrawLooperContext( |
| 144 | const SkLayerDrawLooper* looper) : fCurrRec(looper->fRecs) {} |
| 145 | |
| 146 | bool SkLayerDrawLooper::LayerDrawLooperContext::next(SkCanvas* canvas, |
| 147 | SkPaint* paint) { |
reed@google.com | 4e2b3d3 | 2011-04-07 14:18:59 +0000 | [diff] [blame] | 148 | canvas->restore(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 149 | if (nullptr == fCurrRec) { |
reed@google.com | 4e2b3d3 | 2011-04-07 14:18:59 +0000 | [diff] [blame] | 150 | return false; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 151 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 152 | |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 153 | ApplyInfo(paint, fCurrRec->fPaint, fCurrRec->fInfo); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 154 | |
commit-bot@chromium.org | 091a594 | 2014-04-18 14:19:31 +0000 | [diff] [blame] | 155 | canvas->save(); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 156 | if (fCurrRec->fInfo.fPostTranslate) { |
| 157 | postTranslate(canvas, fCurrRec->fInfo.fOffset.fX, |
| 158 | fCurrRec->fInfo.fOffset.fY); |
| 159 | } else { |
commit-bot@chromium.org | 79fbb40 | 2014-03-12 09:42:01 +0000 | [diff] [blame] | 160 | canvas->translate(fCurrRec->fInfo.fOffset.fX, |
| 161 | fCurrRec->fInfo.fOffset.fY); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 162 | } |
mike@reedtribe.org | e5d0def | 2011-04-08 00:53:48 +0000 | [diff] [blame] | 163 | fCurrRec = fCurrRec->fNext; |
| 164 | |
reed@google.com | 4e2b3d3 | 2011-04-07 14:18:59 +0000 | [diff] [blame] | 165 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 166 | } |
| 167 | |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 168 | bool SkLayerDrawLooper::asABlurShadow(BlurShadowRec* bsRec) const { |
| 169 | if (fCount != 2) { |
| 170 | return false; |
| 171 | } |
| 172 | const Rec* rec = fRecs; |
| 173 | |
| 174 | // bottom layer needs to be just blur(maskfilter) |
| 175 | if ((rec->fInfo.fPaintBits & ~kMaskFilter_Bit)) { |
| 176 | return false; |
| 177 | } |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 178 | if (SkBlendMode::kSrc != (SkBlendMode)rec->fInfo.fColorMode) { |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 179 | return false; |
| 180 | } |
| 181 | const SkMaskFilter* mf = rec->fPaint.getMaskFilter(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 182 | if (nullptr == mf) { |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 183 | return false; |
| 184 | } |
Mike Reed | 80747ef | 2018-01-23 15:29:32 -0500 | [diff] [blame] | 185 | SkMaskFilterBase::BlurRec maskBlur; |
| 186 | if (!as_MFB(mf)->asABlur(&maskBlur)) { |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 187 | return false; |
| 188 | } |
| 189 | |
| 190 | rec = rec->fNext; |
| 191 | // top layer needs to be "plain" |
| 192 | if (rec->fInfo.fPaintBits) { |
| 193 | return false; |
| 194 | } |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 195 | if (SkBlendMode::kDst != (SkBlendMode)rec->fInfo.fColorMode) { |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 196 | return false; |
| 197 | } |
| 198 | if (!rec->fInfo.fOffset.equals(0, 0)) { |
| 199 | return false; |
| 200 | } |
| 201 | |
| 202 | if (bsRec) { |
| 203 | bsRec->fSigma = maskBlur.fSigma; |
| 204 | bsRec->fOffset = fRecs->fInfo.fOffset; |
| 205 | bsRec->fColor = fRecs->fPaint.getColor(); |
| 206 | bsRec->fStyle = maskBlur.fStyle; |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 207 | } |
| 208 | return true; |
| 209 | } |
| 210 | |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 211 | sk_sp<SkDrawLooper> SkLayerDrawLooper::onMakeColorSpace(SkColorSpaceXformer* xformer) const { |
| 212 | if (!fCount) { |
| 213 | return sk_ref_sp(const_cast<SkLayerDrawLooper*>(this)); |
| 214 | } |
| 215 | |
| 216 | auto looper = sk_sp<SkLayerDrawLooper>(new SkLayerDrawLooper()); |
| 217 | looper->fCount = fCount; |
| 218 | |
| 219 | Rec* oldRec = fRecs; |
| 220 | Rec* newTopRec = new Rec(); |
| 221 | newTopRec->fInfo = oldRec->fInfo; |
| 222 | newTopRec->fPaint = xformer->apply(oldRec->fPaint); |
| 223 | newTopRec->fNext = nullptr; |
| 224 | |
| 225 | Rec* prevNewRec = newTopRec; |
| 226 | oldRec = oldRec->fNext; |
| 227 | while (oldRec) { |
| 228 | Rec* newRec = new Rec(); |
| 229 | newRec->fInfo = oldRec->fInfo; |
| 230 | newRec->fPaint = xformer->apply(oldRec->fPaint); |
| 231 | newRec->fNext = nullptr; |
| 232 | prevNewRec->fNext = newRec; |
| 233 | |
| 234 | prevNewRec = newRec; |
| 235 | oldRec = oldRec->fNext; |
| 236 | } |
| 237 | |
| 238 | looper->fRecs = newTopRec; |
| 239 | return std::move(looper); |
| 240 | } |
| 241 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 242 | /////////////////////////////////////////////////////////////////////////////// |
| 243 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 244 | void SkLayerDrawLooper::flatten(SkWriteBuffer& buffer) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 245 | buffer.writeInt(fCount); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 246 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 247 | Rec* rec = fRecs; |
| 248 | for (int i = 0; i < fCount; i++) { |
reed@google.com | 842292f | 2014-02-28 15:38:22 +0000 | [diff] [blame] | 249 | // Legacy "flagsmask" field -- now ignored, remove when we bump version |
| 250 | buffer.writeInt(0); |
| 251 | |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 252 | buffer.writeInt(rec->fInfo.fPaintBits); |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 253 | buffer.writeInt((int)rec->fInfo.fColorMode); |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 254 | buffer.writePoint(rec->fInfo.fOffset); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 255 | buffer.writeBool(rec->fInfo.fPostTranslate); |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 256 | buffer.writePaint(rec->fPaint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 257 | rec = rec->fNext; |
| 258 | } |
| 259 | } |
| 260 | |
reed | 60c9b58 | 2016-04-03 09:11:13 -0700 | [diff] [blame] | 261 | sk_sp<SkFlattenable> SkLayerDrawLooper::CreateProc(SkReadBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 262 | int count = buffer.readInt(); |
| 263 | |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 264 | Builder builder; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 265 | for (int i = 0; i < count; i++) { |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 266 | LayerInfo info; |
reed@google.com | 842292f | 2014-02-28 15:38:22 +0000 | [diff] [blame] | 267 | // Legacy "flagsmask" field -- now ignored, remove when we bump version |
reed@google.com | 48f31bd | 2014-02-27 14:27:44 +0000 | [diff] [blame] | 268 | (void)buffer.readInt(); |
reed@google.com | 842292f | 2014-02-28 15:38:22 +0000 | [diff] [blame] | 269 | |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 270 | info.fPaintBits = buffer.readInt(); |
Mike Reed | faba371 | 2016-11-03 14:45:31 -0400 | [diff] [blame] | 271 | info.fColorMode = (SkBlendMode)buffer.readInt(); |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 272 | buffer.readPoint(&info.fOffset); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 273 | info.fPostTranslate = buffer.readBool(); |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 274 | buffer.readPaint(builder.addLayerOnTop(info)); |
Kevin Lubick | daebae9 | 2018-05-17 11:29:10 -0400 | [diff] [blame] | 275 | if (!buffer.isValid()) { |
| 276 | return nullptr; |
| 277 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 278 | } |
reed | 60c9b58 | 2016-04-03 09:11:13 -0700 | [diff] [blame] | 279 | return builder.detach(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 280 | } |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 281 | |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 282 | SkLayerDrawLooper::Builder::Builder() |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 283 | : fRecs(nullptr), |
| 284 | fTopRec(nullptr), |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 285 | fCount(0) { |
| 286 | } |
| 287 | |
| 288 | SkLayerDrawLooper::Builder::~Builder() { |
| 289 | Rec* rec = fRecs; |
| 290 | while (rec) { |
| 291 | Rec* next = rec->fNext; |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 292 | delete rec; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 293 | rec = next; |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | SkPaint* SkLayerDrawLooper::Builder::addLayer(const LayerInfo& info) { |
| 298 | fCount += 1; |
| 299 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 300 | Rec* rec = new Rec; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 301 | rec->fNext = fRecs; |
| 302 | rec->fInfo = info; |
| 303 | fRecs = rec; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 304 | if (nullptr == fTopRec) { |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 305 | fTopRec = rec; |
| 306 | } |
| 307 | |
| 308 | return &rec->fPaint; |
| 309 | } |
| 310 | |
| 311 | void SkLayerDrawLooper::Builder::addLayer(SkScalar dx, SkScalar dy) { |
| 312 | LayerInfo info; |
| 313 | |
| 314 | info.fOffset.set(dx, dy); |
| 315 | (void)this->addLayer(info); |
| 316 | } |
| 317 | |
| 318 | SkPaint* SkLayerDrawLooper::Builder::addLayerOnTop(const LayerInfo& info) { |
| 319 | fCount += 1; |
| 320 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 321 | Rec* rec = new Rec; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 322 | rec->fNext = nullptr; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 323 | rec->fInfo = info; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 324 | if (nullptr == fRecs) { |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 325 | fRecs = rec; |
| 326 | } else { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 327 | SkASSERT(fTopRec); |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 328 | fTopRec->fNext = rec; |
| 329 | } |
| 330 | fTopRec = rec; |
| 331 | |
| 332 | return &rec->fPaint; |
| 333 | } |
| 334 | |
reed | 7b380d0 | 2016-03-21 13:25:16 -0700 | [diff] [blame] | 335 | sk_sp<SkDrawLooper> SkLayerDrawLooper::Builder::detach() { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 336 | SkLayerDrawLooper* looper = new SkLayerDrawLooper; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 337 | looper->fCount = fCount; |
| 338 | looper->fRecs = fRecs; |
| 339 | |
| 340 | fCount = 0; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 341 | fRecs = nullptr; |
| 342 | fTopRec = nullptr; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 343 | |
reed | 7b380d0 | 2016-03-21 13:25:16 -0700 | [diff] [blame] | 344 | return sk_sp<SkDrawLooper>(looper); |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 345 | } |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 346 | |
| 347 | sk_sp<SkDrawLooper> SkBlurDrawLooper::Make(SkColor color, SkScalar sigma, SkScalar dx, SkScalar dy) |
| 348 | { |
| 349 | sk_sp<SkMaskFilter> blur = nullptr; |
| 350 | if (sigma > 0.0f) { |
Mike Reed | 18e7556 | 2018-03-12 14:03:47 -0400 | [diff] [blame] | 351 | blur = SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, sigma, true); |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 352 | } |
| 353 | |
| 354 | SkLayerDrawLooper::Builder builder; |
| 355 | |
| 356 | // First layer |
| 357 | SkLayerDrawLooper::LayerInfo defaultLayer; |
| 358 | builder.addLayer(defaultLayer); |
| 359 | |
| 360 | // Blur layer |
| 361 | SkLayerDrawLooper::LayerInfo blurInfo; |
| 362 | blurInfo.fColorMode = SkBlendMode::kSrc; |
| 363 | blurInfo.fPaintBits = SkLayerDrawLooper::kMaskFilter_Bit; |
| 364 | blurInfo.fOffset = SkVector::Make(dx, dy); |
| 365 | SkPaint* paint = builder.addLayer(blurInfo); |
| 366 | paint->setMaskFilter(std::move(blur)); |
| 367 | paint->setColor(color); |
| 368 | |
| 369 | return builder.detach(); |
| 370 | } |